src/mathed/formulabase.C

   1 /*
   2 *  File:        formulabase.C
   3 *  Purpose:     Implementation of common parts of the LyX  math insets
   4 *  Author:      Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
   5 *  Created:     January 1996
   6 *
   7 *  Copyright: 1996-1998 Alejandro Aguilar Sierra
   8 *
   9 *  Version: 0.4, Lyx project.
  10 *
  11 *   You are free to use and modify this code under the terms of
  12 *   the GNU General Public Licence version 2 or later.
  13 */
  14
  15 #include <config.h>
  16 #include <fstream>
  17
  18 #include "Lsstream.h"
  19 #include "support/LAssert.h"
  20
  21 #ifdef __GNUG__
  22 #pragma implementation
  23 #endif
  24
  25 #include "formula.h"
  26 #include "formulamacro.h"
  27 #include "commandtags.h"
  28 #include "BufferView.h"
  29 #include "lyxtext.h"
  30 #include "lyxfunc.h"
  31 #include "gettext.h"
  32 #include "LaTeXFeatures.h"
  33 #include "debug.h"
  34 #include "math_support.h"
  35 #include "support/lstrings.h"
  36 #include "frontends/LyXView.h"
  37 #include "frontends/font_metrics.h"
  38 #include "frontends/mouse_state.h"
  39 #include "Lsstream.h"
  40 #include "math_arrayinset.h"
  41 #include "math_charinset.h"
  42 #include "math_cursor.h"
  43 #include "math_factory.h"
  44 #include "math_hullinset.h"
  45 #include "math_iterator.h"
  46 #include "math_macrotable.h"
  47 #include "math_parser.h"
  48 #include "math_pos.h"
  49 #include "math_spaceinset.h"
  50 #include "undo_funcs.h"
  51 #include "textpainter.h"
  52 #include "frontends/Dialogs.h"
  53 #include "intl.h"
  54
  55 using std::endl;
  56 using std::ostream;
  57 using std::vector;
  58
  59 MathCursor * mathcursor = 0;
  60
  61
  62 namespace {
  63
  64
  65 // local global
  66 int first_x;
  67 int first_y;
  68
  69
  70 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  71 {
  72         if (!bv->insertInset(new_inset)) {
  73                 delete new_inset;
  74                 return false;
  75         }
  76         new_inset->edit(bv, 0, 0, mouse_button::none);
  77         return true;
  78 }
  79
  80
  81 } // namespace anon
  82
  83
  84
  85 InsetFormulaBase::InsetFormulaBase()
  86         : view_(0), font_(), xo_(0), yo_(0)
  87 {
  88         // This is needed as long the math parser is not re-entrant
  89         MathMacroTable::builtinMacros();
  90         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
  91         //lyxerr << "sizeof(MathMetricsInfo): " << sizeof(MathMetricsInfo) << "\n";
  92         //lyxerr << "sizeof(MathCharInset): " << sizeof(MathCharInset) << "\n";
  93 }
  94
  95
  96 // simply scrap this function if you want
  97 void InsetFormulaBase::mutateToText()
  98 {
  99 #if 0
 100         // translate to latex
 101         ostringstream os;
 102         latex(NULL, os, false, false);
 103         string str = os.str();
 104
 105         // insert this text
 106         LyXText * lt = view_->getLyXText();
 107         string::const_iterator cit = str.begin();
 108         string::const_iterator end = str.end();
 109         for (; cit != end; ++cit)
 110                 view_->owner()->getIntl()->getTrans().TranslateAndInsert(*cit, lt);
 111
 112         // remove ourselves
 113         //view_->owner()->getLyXFunc()->dispatch(LFUN_ESCAPE);
 114 #endif
 115 }
 116
 117
 118 // Check if uses AMS macros
 119 void InsetFormulaBase::validate(LaTeXFeatures &) const
 120 {}
 121
 122
 123 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 124 {
 125         font_ = f;
 126         metrics(bv);
 127 }
 128
 129
 130 void InsetFormulaBase::metrics(BufferView * bv) const
 131 {
 132         if (bv)
 133                 view_ = bv;
 134         MathMetricsInfo mi(view_, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 135         par()->metrics(mi);
 136 }
 137
 138
 139 string const InsetFormulaBase::editMessage() const
 140 {
 141         return _("Math editor mode");
 142 }
 143
 144
 145 void InsetFormulaBase::edit(BufferView * bv, int x, int y, mouse_button::state)
 146 {
 147         if (!bv->lockInset(this))
 148                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 149         delete mathcursor;
 150         mathcursor = new MathCursor(this, true);
 151         metrics(bv);
 152         mathcursor->setPos(x, y);
 153         //lyxerr << "setting pos to " << x << "," << y << "\n";
 154
 155         // if that is removed, we won't get the magenta box when entering an
 156         // inset for the first time
 157         bv->updateInset(this, false);
 158 }
 159
 160
 161 void InsetFormulaBase::edit(BufferView * bv, bool front)
 162 {
 163         if (!bv->lockInset(this))
 164                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 165         delete mathcursor;
 166         mathcursor = new MathCursor(this, front);
 167         metrics(bv);
 168         bv->updateInset(this, false);
 169 }
 170
 171
 172 void InsetFormulaBase::handleFont
 173         (BufferView * bv, string const & arg, MathTextCodes t)
 174 {
 175         if (mathcursor->selection()) {
 176                 bv->lockedInsetStoreUndo(Undo::EDIT);
 177                 updateLocal(bv, true);
 178         }
 179         mathcursor->handleFont(t);
 180         for (string::const_iterator it = arg.begin(); it != arg.end(); ++it)
 181                 mathcursor->insert(*it);
 182         updateLocal(bv, false);
 183 }
 184
 185
 186 void InsetFormulaBase::insetUnlock(BufferView * bv)
 187 {
 188         if (mathcursor) {
 189                 if (mathcursor->inMacroMode()) {
 190                         mathcursor->macroModeClose();
 191                         updateLocal(bv, true);
 192                 }
 193                 delete mathcursor;
 194                 mathcursor = 0;
 195         }
 196         bv->updateInset(this, false);
 197 }
 198
 199
 200 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 201 {
 202         mathcursor->getPos(x, y);
 203         //x -= xo_;
 204         y -= yo_;
 205         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 206 }
 207
 208
 209 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 210 {
 211         if (!mathcursor)
 212                 return;
 213
 214         if (isCursorVisible())
 215                 bv->hideLockedInsetCursor();
 216         else {
 217                 metrics(bv);
 218                 int x;
 219                 int y;
 220                 mathcursor->getPos(x, y);
 221                 y -= yo_;
 222                 int asc = 0;
 223                 int des = 0;
 224                 math_font_max_dim(font_, asc, des);
 225                 bv->showLockedInsetCursor(x, y, asc, des);
 226                 //lyxerr << "toggleInsetCursor: " << x << " " << y << "\n";
 227         }
 228
 229         toggleCursorVisible();
 230 }
 231
 232
 233 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 234 {
 235         if (isCursorVisible())
 236                 return;
 237         if (mathcursor) {
 238                 metrics(bv);
 239                 int x;
 240                 int y;
 241                 mathcursor->getPos(x, y);
 242                 y -= yo_;
 243                 int asc = 0;
 244                 int des = 0;
 245                 math_font_max_dim(font_, asc, des);
 246                 bv->fitLockedInsetCursor(x, y, asc, des);
 247                 //lyxerr << "showInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 248         }
 249         toggleInsetCursor(bv);
 250 }
 251
 252
 253 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 254 {
 255         if (isCursorVisible())
 256                 toggleInsetCursor(bv);
 257 }
 258
 259
 260 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 261 {
 262         if (mathcursor)
 263                 bv->updateInset(this, false);
 264 }
 265
 266
 267 vector<string> const InsetFormulaBase::getLabelList() const
 268 {
 269   return vector<string>();
 270 }
 271
 272
 273 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 274 {
 275         metrics(bv);
 276         bv->updateInset(this, dirty);
 277 }
 278
 279
 280 bool InsetFormulaBase::insetButtonRelease(BufferView * bv,
 281                                           int /*x*/, int /*y*/, mouse_button::state button)
 282 {
 283         //lyxerr << "insetButtonRelease: " << x << " " << y << "\n";
 284
 285         if (!mathcursor)
 286                 return false;
 287         hideInsetCursor(bv);
 288         showInsetCursor(bv);
 289         bv->updateInset(this, false);
 290
 291         if (button == mouse_button::button3) {
 292                 // launch math panel for right mouse button
 293                 bv->owner()->getDialogs()->showMathPanel();
 294                 return true;
 295         }
 296         return false;
 297 }
 298
 299
 300 void InsetFormulaBase::insetButtonPress(BufferView * bv,
 301                                         int x, int y, mouse_button::state button)
 302 {
 303         //lyxerr << "insetButtonPress: "
 304         //      << x << " " << y << " but: " << button << "\n";
 305 #if 0
 306         switch (button) {
 307                 default:
 308                 case 1:
 309                         // left click
 310                         delete mathcursor;
 311                         mathcursor = new MathCursor(this, x == 0);
 312                         metrics(bv);
 313                         first_x = x;
 314                         first_y = y;
 315                         mathcursor->selClear();
 316                         mathcursor->setPos(x + xo_, y + yo_);
 317                         break;
 318 /*
 319                 case 2:
 320                         lyxerr << "insetButtonPress: 2\n";
 321                         // insert stuff
 322                         if (mathcursor) {
 323                                 bv->lockedInsetStoreUndo(Undo::EDIT);
 324                                 MathArray ar;
 325                                 mathcursor->selGet(ar);
 326                                 mathcursor->setPos(x + xo_, y + yo_);
 327                                 string sel =
 328                                         bv->getLyXText()->selectionAsString(bv->buffer(), false);
 329                                 mathed_parse_cell(ar, sel);
 330                                 mathcursor->insert(ar);
 331                         }
 332                         break;
 333 */
 334                 case 3:
 335                         // launch math panel for right mouse button
 336                         bv->owner()->getDialogs()->showMathPanel();
 337                         break;
 338         }
 339 #else
 340         if (button == mouse_button::button1 || !mathcursor) {
 341                 delete mathcursor;
 342                 mathcursor = new MathCursor(this, x == 0);
 343                 metrics(bv);
 344                 first_x = x;
 345                 first_y = y;
 346                 mathcursor->selClear();
 347                 mathcursor->setPos(x + xo_, y + yo_);
 348         }
 349 #if 0
 350 #warning Never launch a Dialog on "Press" event ONLY on "Release" event!
 351         if (button == 3) {
 352                 // launch math panel for right mouse button
 353                 bv->owner()->getDialogs()->showMathPanel();
 354         }
 355 #endif
 356 #endif
 357         bv->updateInset(this, false);
 358 }
 359
 360
 361 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
 362         int x, int y, mouse_button::state)
 363 {
 364         if (!mathcursor)
 365                 return;
 366
 367         if (abs(x - first_x) < 2 && abs(y - first_y) < 2) {
 368                 //lyxerr << "insetMotionNotify: ignored\n";
 369                 return;
 370         }
 371         first_x = x;
 372         first_y = y;
 373
 374         if (!mathcursor->selection())
 375                 mathcursor->selStart();
 376
 377         //lyxerr << "insetMotionNotify: " << x + xo_ << ' ' << y + yo_
 378         //      << ' ' << button << "\n";
 379         hideInsetCursor(bv);
 380         mathcursor->setPos(x + xo_, y + yo_);
 381         showInsetCursor(bv);
 382         bv->updateInset(this, false);
 383 }
 384
 385
 386 UpdatableInset::RESULT
 387 InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
 388                             string const & arg)
 389 {
 390         //lyxerr << "InsetFormulaBase::localDispatch: act: " << action
 391         //      << " arg: '" << arg << "' cursor: " << mathcursor << "\n";
 392
 393         if (!mathcursor)
 394                 return UNDISPATCHED;
 395
 396         RESULT result      = DISPATCHED;
 397         bool sel           = false;
 398         bool was_macro     = mathcursor->inMacroMode();
 399         bool was_selection = mathcursor->selection();
 400
 401         hideInsetCursor(bv);
 402
 403         mathcursor->normalize();
 404         mathcursor->touch();
 405
 406         switch (action) {
 407
 408                 // --- Cursor Movements ---------------------------------------------
 409
 410         case LFUN_RIGHTSEL:
 411                 sel = true; // fall through...
 412
 413         case LFUN_RIGHT:
 414                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 415                 //lyxerr << "calling scroll 20\n";
 416                 //scroll(bv, 20);
 417                 updateLocal(bv, false);
 418                 // write something to the minibuffer
 419                 //bv->owner()->message(mathcursor->info());
 420                 break;
 421
 422
 423         case LFUN_LEFTSEL:
 424                 sel = true; // fall through
 425
 426         case LFUN_LEFT:
 427                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 428                 updateLocal(bv, false);
 429                 break;
 430
 431
 432         case LFUN_UPSEL:
 433                 sel = true;
 434
 435         case LFUN_UP:
 436                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 437                 updateLocal(bv, false);
 438                 break;
 439
 440
 441         case LFUN_DOWNSEL:
 442                 sel = true;
 443
 444         case LFUN_DOWN:
 445                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 446                 updateLocal(bv, false);
 447                 break;
 448
 449         case LFUN_HOMESEL:
 450                 sel = true;
 451
 452         case LFUN_HOME:
 453                 mathcursor->home(sel);
 454                 updateLocal(bv, false);
 455                 break;
 456
 457         case LFUN_ENDSEL:
 458                 sel = true;
 459
 460         case LFUN_END:
 461                 mathcursor->end(sel);
 462                 updateLocal(bv, false);
 463                 break;
 464
 465         case LFUN_DELETE_LINE_FORWARD:
 466                 bv->lockedInsetStoreUndo(Undo::DELETE);
 467                 mathcursor->delLine();
 468                 updateLocal(bv, true);
 469                 break;
 470
 471         case LFUN_TAB:
 472                 mathcursor->idxNext();
 473                 updateLocal(bv, false);
 474                 break;
 475
 476         case LFUN_SHIFT_TAB:
 477                 mathcursor->idxPrev();
 478                 updateLocal(bv, false);
 479                 break;
 480
 481         case LFUN_TABINSERT:
 482                 bv->lockedInsetStoreUndo(Undo::EDIT);
 483                 mathcursor->splitCell();
 484                 updateLocal(bv, true);
 485                 break;
 486
 487         case LFUN_DELETE_WORD_BACKWARD:
 488         case LFUN_BACKSPACE:
 489                 bv->lockedInsetStoreUndo(Undo::DELETE);
 490                 mathcursor->backspace();
 491                 bv->updateInset(this, true);
 492                 break;
 493
 494         case LFUN_DELETE_WORD_FORWARD:
 495         case LFUN_DELETE:
 496                 bv->lockedInsetStoreUndo(Undo::DELETE);
 497                 mathcursor->erase();
 498                 bv->updateInset(this, true);
 499                 break;
 500
 501         //    case LFUN_GETXY:
 502         //      sprintf(dispatch_buffer, "%d %d",);
 503         //      dispatch_result = dispatch_buffer;
 504         //      break;
 505         case LFUN_SETXY: {
 506                 lyxerr << "LFUN_SETXY broken!\n";
 507                 int x = 0;
 508                 int y = 0;
 509                 istringstream is(arg.c_str());
 510                 is >> x >> y;
 511                 mathcursor->setPos(x, y);
 512                 updateLocal(bv, false);
 513                 break;
 514         }
 515
 516         case LFUN_PASTE:
 517                 if (was_macro)
 518                         mathcursor->macroModeClose();
 519                 bv->lockedInsetStoreUndo(Undo::EDIT);
 520                 mathcursor->selPaste();
 521                 updateLocal(bv, true);
 522                 break;
 523
 524         case LFUN_CUT:
 525                 bv->lockedInsetStoreUndo(Undo::DELETE);
 526                 mathcursor->selCut();
 527                 updateLocal(bv, true);
 528                 break;
 529
 530         case LFUN_COPY:
 531                 mathcursor->selCopy();
 532                 break;
 533
 534         case LFUN_WORDRIGHTSEL:
 535         case LFUN_WORDLEFTSEL:
 536                 break;
 537
 538         // Special casing for superscript in case of LyX handling
 539         // dead-keys:
 540         case LFUN_CIRCUMFLEX:
 541                 if (arg.empty()) {
 542                         // do superscript if LyX handles
 543                         // deadkeys
 544                         bv->lockedInsetStoreUndo(Undo::EDIT);
 545                         mathcursor->script(true);
 546                         updateLocal(bv, true);
 547                 }
 548                 break;
 549         case LFUN_UMLAUT:
 550         case LFUN_ACUTE:
 551         case LFUN_GRAVE:
 552         case LFUN_BREVE:
 553         case LFUN_DOT:
 554         case LFUN_MACRON:
 555         case LFUN_CARON:
 556         case LFUN_TILDE:
 557         case LFUN_CEDILLA:
 558         case LFUN_CIRCLE:
 559         case LFUN_UNDERDOT:
 560         case LFUN_TIE:
 561         case LFUN_OGONEK:
 562         case LFUN_HUNG_UMLAUT:
 563                 break;
 564
 565         //  Math fonts
 566         case LFUN_GREEK_TOGGLE: handleFont(bv, arg, LM_TC_GREEK); break;
 567         case LFUN_BOLD:         handleFont(bv, arg, LM_TC_BF); break;
 568         case LFUN_SANS:         handleFont(bv, arg, LM_TC_SF); break;
 569         case LFUN_EMPH:         handleFont(bv, arg, LM_TC_CAL); break;
 570         case LFUN_ROMAN:        handleFont(bv, arg, LM_TC_RM); break;
 571         case LFUN_CODE:         handleFont(bv, arg, LM_TC_TT); break;
 572         case LFUN_FRAK:         handleFont(bv, arg, LM_TC_EUFRAK); break;
 573         case LFUN_ITAL:         handleFont(bv, arg, LM_TC_IT); break;
 574         case LFUN_NOUN:         handleFont(bv, arg, LM_TC_BB); break;
 575         case LFUN_DEFAULT:      handleFont(bv, arg, LM_TC_VAR); break;
 576         case LFUN_FREE:         handleFont(bv, arg, LM_TC_TEXTRM); break;
 577
 578         case LFUN_GREEK:
 579                 handleFont(bv, arg, LM_TC_GREEK1);
 580                 if (arg.size())
 581                         mathcursor->interpret(arg);
 582                 break;
 583
 584         case LFUN_MATH_MODE:
 585 #if 1
 586                 handleFont(bv, arg, LM_TC_TEXTRM);
 587 #endif
 588
 589 #if 0
 590                 mathcursor->niceInsert(MathAtom(new MathHullInset(LM_OT_SIMPLE)));
 591                 updateLocal(bv, true);
 592 #endif
 593
 594                 //bv->owner()->message(_("math text mode toggled"));
 595                 break;
 596
 597         case LFUN_MATH_LIMITS:
 598                 bv->lockedInsetStoreUndo(Undo::EDIT);
 599                 if (mathcursor->toggleLimits())
 600                         updateLocal(bv, true);
 601                 break;
 602
 603         case LFUN_MATH_SIZE:
 604 #if 0
 605                 if (!arg.empty()) {
 606                         bv->lockedInsetStoreUndo(Undo::EDIT);
 607                         mathcursor->setSize(arg);
 608                         updateLocal(bv, true);
 609                 }
 610 #endif
 611                 break;
 612
 613         case LFUN_INSERT_MATRIX:
 614                 if (!arg.empty()) {
 615                         bv->lockedInsetStoreUndo(Undo::EDIT);
 616                         mathcursor->interpret("matrix " + arg);
 617                         updateLocal(bv, true);
 618                 }
 619                 break;
 620
 621         case LFUN_SUPERSCRIPT:
 622         case LFUN_SUBSCRIPT:
 623         {
 624                 bv->lockedInsetStoreUndo(Undo::EDIT);
 625                 mathcursor->script(action == LFUN_SUPERSCRIPT);
 626                 updateLocal(bv, true);
 627                 break;
 628         }
 629
 630         case LFUN_MATH_DELIM:
 631         {
 632                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 633                 string ls;
 634                 string rs = split(arg, ls, ' ');
 635                 // Reasonable default values
 636                 if (ls.empty())
 637                         ls = '(';
 638                 if (rs.empty())
 639                         rs = ')';
 640
 641                 bv->lockedInsetStoreUndo(Undo::EDIT);
 642                 mathcursor->handleDelim(ls, rs);
 643                 updateLocal(bv, true);
 644                 break;
 645         }
 646
 647         case LFUN_PROTECTEDSPACE:
 648         case LFUN_MATH_SPACE:
 649                 bv->lockedInsetStoreUndo(Undo::EDIT);
 650                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 651                 updateLocal(bv, true);
 652                 break;
 653
 654         case LFUN_UNDO:
 655                 bv->owner()->message(_("Invalid action in math mode!"));
 656                 break;
 657
 658
 659         case LFUN_MATH_HALIGN:
 660         case LFUN_MATH_VALIGN:
 661         case LFUN_MATH_ROW_INSERT:
 662         case LFUN_MATH_ROW_DELETE:
 663         case LFUN_MATH_COLUMN_INSERT:
 664         case LFUN_MATH_COLUMN_DELETE:
 665         {
 666                 MathInset::idx_type idx = 0;
 667                 MathGridInset * p = mathcursor ? mathcursor->enclosingGrid(idx) : 0;
 668                 if (p) {
 669                         mathcursor->popToEnclosingGrid();
 670                         bv->lockedInsetStoreUndo(Undo::EDIT);
 671                         char align = arg.size() ? arg[0] : 'c';
 672                         switch (action) {
 673                                 case LFUN_MATH_HALIGN: p->halign(align, p->col(idx)); break;
 674                                 case LFUN_MATH_VALIGN: p->valign(align); break;
 675                                 case LFUN_MATH_ROW_INSERT: p->addRow(p->row(idx)); break;
 676                                 case LFUN_MATH_ROW_DELETE: p->delRow(p->row(idx)); break;
 677                                 case LFUN_MATH_COLUMN_INSERT: p->addCol(p->col(idx)); break;
 678                                 case LFUN_MATH_COLUMN_DELETE: p->delCol(p->col(idx)); break;
 679                                 default: ;
 680                         }
 681                         updateLocal(bv, true);
 682                 }
 683                 break;
 684         }
 685
 686         case LFUN_EXEC_COMMAND:
 687                 result = UNDISPATCHED;
 688                 break;
 689
 690         case LFUN_BREAKPARAGRAPH:
 691         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 692                 //lyxerr << "LFUN ignored\n";
 693                 break;
 694
 695         case LFUN_INSET_ERT:
 696                 // interpret this as if a backslash was typed
 697                 bv->lockedInsetStoreUndo(Undo::EDIT);
 698                 mathcursor->interpret('\\');
 699                 updateLocal(bv, true);
 700                 break;
 701
 702         case -1:
 703         case LFUN_INSERT_MATH:
 704         case LFUN_SELFINSERT:
 705                 if (!arg.empty()) {
 706                         bv->lockedInsetStoreUndo(Undo::EDIT);
 707                         if (arg.size() == 1)
 708                                 result = mathcursor->interpret(arg[0]) ? DISPATCHED : FINISHED_RIGHT;
 709                         else
 710                                 result = mathcursor->interpret(arg) ? DISPATCHED : FINISHED_RIGHT;
 711                         updateLocal(bv, true);
 712                 }
 713                 break;
 714
 715         case LFUN_MATH_PANEL:
 716                 result = UNDISPATCHED;
 717                 break;
 718
 719         case LFUN_ESCAPE:
 720                 if (mathcursor->selection())
 721                         mathcursor->selClear();
 722                 else
 723                         result = UNDISPATCHED;
 724                 break;
 725
 726         default:
 727                 result = UNDISPATCHED;
 728         }
 729
 730         mathcursor->normalize();
 731         mathcursor->touch();
 732
 733         lyx::Assert(mathcursor);
 734
 735         if (mathcursor->selection() || was_selection)
 736                 toggleInsetSelection(bv);
 737
 738         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 739             result == UNDISPATCHED)
 740                 showInsetCursor(bv);
 741         else
 742                 bv->unlockInset(this);
 743
 744         revealCodes(bv);
 745
 746         return result;  // original version
 747 }
 748
 749
 750 void InsetFormulaBase::revealCodes(BufferView * /*bv*/) const
 751 {
 752         if (!mathcursor)
 753                 return;
 754 #if 0
 755         // write something to the minibuffer
 756         // translate to latex
 757         mathcursor->markInsert();
 758         ostringstream os;
 759         write(NULL, os);
 760         string str = os.str();
 761         mathcursor->markErase();
 762         string::size_type pos = 0;
 763         string res;
 764         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 765                 if (*it == '\n')
 766                         res += ' ';
 767                 else if (*it == '\0') {
 768                         res += "  -X-  ";
 769                         pos = it - str.begin();
 770                 }
 771                 else
 772                         res += *it;
 773         }
 774         if (pos > 30)
 775                 res = res.substr(pos - 30);
 776         if (res.size() > 60)
 777                 res = res.substr(0, 60);
 778         bv->owner()->message(res);
 779 #endif
 780 }
 781
 782
 783 Inset::Code InsetFormulaBase::lyxCode() const
 784 {
 785         return Inset::MATH_CODE;
 786 }
 787
 788
 789 int InsetFormulaBase::ylow() const
 790 {
 791         return yo_ - ascent(view_, font_);
 792 }
 793
 794
 795 int InsetFormulaBase::yhigh() const
 796 {
 797         return yo_ + descent(view_, font_);
 798 }
 799
 800
 801 int InsetFormulaBase::xlow() const
 802 {
 803         return xo_;
 804 }
 805
 806
 807 int InsetFormulaBase::xhigh() const
 808 {
 809         return xo_ + width(view_, font_);
 810 }
 811
 812
 813 /////////////////////////////////////////////////////////////////////
 814
 815
 816 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 817                                      bool, bool)
 818 {
 819 #ifdef WITH_WARNINGS
 820 #warning pretty ugly
 821 #endif
 822         static InsetFormulaBase * lastformula = 0;
 823         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 824         static MathArray ar;
 825         static string laststr;
 826
 827         if (lastformula != this || laststr != str) {
 828                 //lyxerr << "reset lastformula to " << this << "\n";
 829                 lastformula = this;
 830                 laststr = str;
 831                 current = ibegin(par().nucleus());
 832                 ar.clear();
 833                 mathed_parse_cell(ar, str);
 834         } else {
 835                 ++current;
 836         }
 837         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 838
 839         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 840                 if (it.cell().matchpart(ar, it.position().pos_)) {
 841                         mathcursor->setSelection(it.cursor(), ar.size());
 842                         current = it;
 843                         it.jump(ar.size());
 844                         // I guess some of the following can go
 845                         bv->toggleSelection(true);
 846                         hideInsetCursor(bv);
 847                         updateLocal(bv, true);
 848                         showInsetCursor(bv);
 849                         metrics(bv);
 850                         return true;
 851                 }
 852         }
 853
 854         //lyxerr << "not found!\n";
 855         lastformula = 0;
 856         // we have to unlock ourself in this function by default!
 857         // don't ask me why...
 858         bv->unlockInset(this);
 859         return false;
 860 }
 861
 862
 863 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 864                                       bool a, bool b)
 865 {
 866         lyxerr << "searching backward not implemented in mathed" << endl;
 867         return searchForward(bv, what, a, b);
 868 }
 869
 870
 871 /////////////////////////////////////////////////////////////////////
 872
 873
 874 void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
 875 {
 876         if (bv->available()) {
 877                 // use selection if available..
 878                 //string sel;
 879                 //if (action == LFUN_MATH_IMPORT_SELECTION)
 880                 //      sel = "";
 881                 //else
 882
 883                 string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 884
 885                 InsetFormulaBase * f;
 886                 if (sel.empty()) {
 887                         f = new InsetFormula;
 888                         if (openNewInset(bv, f)) {
 889                                 // don't do that also for LFUN_MATH_MODE unless you want end up with
 890                                 // always changing to mathrm when opening an inlined inset
 891                                 // -- I really hate "LyXfunc overloading"...
 892                                 if (display)
 893                                         f->localDispatch(bv, LFUN_MATH_DISPLAY, string());
 894                                 f->localDispatch(bv, LFUN_INSERT_MATH, arg);
 895                         }
 896                 } else {
 897                         // create a macro if we see "\\newcommand" somewhere, and an ordinary
 898                         // formula otherwise
 899                         if (sel.find("\\newcommand") == string::npos &&
 900                                   sel.find("\\def") == string::npos)
 901                                 f = new InsetFormula(sel);
 902                         else {
 903                                 string name;
 904                                 if (!mathed_parse_macro(name, sel))
 905                                         return;
 906                                 f = new InsetFormulaMacro(sel);
 907                         }
 908                         bv->getLyXText()->cutSelection(bv);
 909                         openNewInset(bv, f);
 910                 }
 911         }
 912         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
 913 }
 914
 915
 916 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
 917 {
 918         mathDispatchCreation(bv, arg, true);
 919 }
 920
 921
 922 void mathDispatchMathMode(BufferView * bv, string const & arg)
 923 {
 924         mathDispatchCreation(bv, arg, false);
 925 }
 926
 927
 928 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
 929 {
 930         mathDispatchCreation(bv, arg, true);
 931 }
 932
 933
 934 void mathDispatchMathMacro(BufferView * bv, string const & arg)
 935 {
 936         if (bv->available()) {
 937                 if (arg.empty())
 938                         bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
 939                 else {
 940                         string s = arg;
 941                         string const s1 = token(s, ' ', 1);
 942                         int const na = s1.empty() ? 0 : lyx::atoi(s1);
 943                         openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 944                 }
 945         }
 946 }
 947
 948
 949 void mathDispatchMathDelim(BufferView * bv, string const & arg)
 950 {
 951         if (bv->available()) {
 952                 if (openNewInset(bv, new InsetFormula))
 953                         bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
 954         }
 955 }
 956
 957
 958 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
 959 {
 960         if (bv->available()) {
 961                 if (openNewInset(bv, new InsetFormula))
 962                         bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
 963         }
 964 }
 965
 966
 967 void mathDispatchInsertMath(BufferView * bv, string const & arg)
 968 {
 969         if (bv->available()) {
 970                 if (arg.size() && arg[0] == '\\') {
 971                         InsetFormula * f = new InsetFormula(arg);
 972                         if (!bv->insertInset(f))
 973                                 delete f;
 974                         else if (!mathcursor) // hotfix
 975                                 bv->getLyXText()->cursorRight(bv);
 976                 } else {
 977                         mathDispatchMathMode(bv, arg);
 978                 }
 979         }
 980 }
 981
 982
 983 void mathDispatchGreek(BufferView * bv, string const & arg)
 984 {
 985         if (bv->available()) {
 986                 InsetFormula * f = new InsetFormula;
 987                 if (openNewInset(bv, f)) {
 988                         bv->theLockingInset()->localDispatch(bv, LFUN_GREEK, arg);
 989                         bv->unlockInset(f);
 990                 }
 991         }
 992 }
 993
 994
 995 void mathDispatch(BufferView *, kb_action, string const &)
 996 {}